Water distillation unit



FIG. 1 is a front, top and left end perspective view of a water distillation unit according to the invention;

FIG. 2 is a front elevation thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a right end elevation thereof;

FIG. 6 is a left end elevation thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing in FIG. 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for the water distillation unit, as shown and described. 